Are travellers expecting huge delays at UK airports during the summer?

How long, on average, would you expect queues at UK airports to be during the following periods? (% of all GB adults)

Under 30 mins

Over 30 mins, up to an hour

Over an hour, up to 2 hours

Over 2 hours, up to 3 hours

Over 3 hours, up to 4 hours

over 4 hours, up to 5 hours

Over 5 hours

Don't know